java.lang.Object
- org.pcap4j.packet.AbstractPacket.AbstractHeader
- - org.pcap4j.packet.ArpPacket.ArpHeader

All Implemented Interfaces:

java.io.Serializable, Packet.Header

Enclosing class:

ArpPacket
```
public static final class ArpPacket.ArpHeader
extends AbstractPacket.AbstractHeader
```
Version:

pcap4j 0.9.1

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`private static int`	`ARP_HEADER_SIZE`
`private static int`	`DST_HARDWARE_ADDR_OFFSET`
`private static int`	`DST_HARDWARE_ADDR_SIZE`
`private static int`	`DST_PROTOCOL_ADDR_OFFSET`
`private static int`	`DST_PROTOCOL_ADDR_SIZE`
`private MacAddress`	`dstHardwareAddr`
`private java.net.InetAddress`	`dstProtocolAddr`
`private static int`	`HARDWARE_TYPE_OFFSET`
`private static int`	`HARDWARE_TYPE_SIZE`
`private byte`	`hardwareAddrLength`
`private ArpHardwareType`	`hardwareType`
`private static int`	`HW_ADDR_LENGTH_OFFSET`
`private static int`	`HW_ADDR_LENGTH_SIZE`
`private ArpOperation`	`operation`
`private static int`	`OPERATION_OFFSET`
`private static int`	`OPERATION_SIZE`
`private static int`	`PROTO_ADDR_LENGTH_OFFSET`
`private static int`	`PROTO_ADDR_LENGTH_SIZE`
`private static int`	`PROTOCOL_TYPE_OFFSET`
`private static int`	`PROTOCOL_TYPE_SIZE`
`private byte`	`protocolAddrLength`
`private EtherType`	`protocolType`
`private static long`	`serialVersionUID`
`private static int`	`SRC_HARDWARE_ADDR_OFFSET`
`private static int`	`SRC_HARDWARE_ADDR_SIZE`
`private static int`	`SRC_PROTOCOL_ADDR_OFFSET`
`private static int`	`SRC_PROTOCOL_ADDR_SIZE`
`private MacAddress`	`srcHardwareAddr`
`private java.net.InetAddress`	`srcProtocolAddr`

Constructor Summary

Constructors
Modifier Constructor Description

private ArpHeader(byte[] rawData, int offset, int length)

private ArpHeader(ArpPacket.Builder builder)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected java.lang.String`	`buildString()`	This method builds the value `toString()` will return.
`protected int`	`calcHashCode()`	This method builds the value `hashCode()` will return using the byte array `getRawData()` returns.
`boolean`	`equals(java.lang.Object obj)`	Indicates whether some other object is "equal to" this one using return values of `getRawData()`.
`MacAddress`	`getDstHardwareAddr()`
`java.net.InetAddress`	`getDstProtocolAddr()`
`byte`	`getHardwareAddrLength()`
`int`	`getHardwareAddrLengthAsInt()`
`ArpHardwareType`	`getHardwareType()`
`ArpOperation`	`getOperation()`
`byte`	`getProtocolAddrLength()`
`int`	`getProtocolAddrLengthAsInt()`
`EtherType`	`getProtocolType()`
`protected java.util.List<byte[]>`	`getRawFields()`	Returns a list of byte arrays which represents this header's fields.
`MacAddress`	`getSrcHardwareAddr()`
`java.net.InetAddress`	`getSrcProtocolAddr()`
`int`	`length()`	Returns the header length in bytes.

Methods inherited from class org.pcap4j.packet.AbstractPacket.AbstractHeader
buildHexString, buildRawData, calcLength, getRawData, hashCode, toHexString, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - HARDWARE_TYPE_OFFSET
```
private static final int HARDWARE_TYPE_OFFSET
```
    See Also:
    
    Constant Field Values
  - HARDWARE_TYPE_SIZE
```
private static final int HARDWARE_TYPE_SIZE
```
    See Also:
    
    Constant Field Values
  - PROTOCOL_TYPE_OFFSET
```
private static final int PROTOCOL_TYPE_OFFSET
```
    See Also:
    
    Constant Field Values
  - PROTOCOL_TYPE_SIZE
```
private static final int PROTOCOL_TYPE_SIZE
```
    See Also:
    
    Constant Field Values
  - HW_ADDR_LENGTH_OFFSET
```
private static final int HW_ADDR_LENGTH_OFFSET
```
    See Also:
    
    Constant Field Values
  - HW_ADDR_LENGTH_SIZE
```
private static final int HW_ADDR_LENGTH_SIZE
```
    See Also:
    
    Constant Field Values
  - PROTO_ADDR_LENGTH_OFFSET
```
private static final int PROTO_ADDR_LENGTH_OFFSET
```
    See Also:
    
    Constant Field Values
  - PROTO_ADDR_LENGTH_SIZE
```
private static final int PROTO_ADDR_LENGTH_SIZE
```
    See Also:
    
    Constant Field Values
  - OPERATION_OFFSET
```
private static final int OPERATION_OFFSET
```
    See Also:
    
    Constant Field Values
  - OPERATION_SIZE
```
private static final int OPERATION_SIZE
```
    See Also:
    
    Constant Field Values
  - SRC_HARDWARE_ADDR_OFFSET
```
private static final int SRC_HARDWARE_ADDR_OFFSET
```
    See Also:
    
    Constant Field Values
  - SRC_HARDWARE_ADDR_SIZE
```
private static final int SRC_HARDWARE_ADDR_SIZE
```
    See Also:
    
    Constant Field Values
  - SRC_PROTOCOL_ADDR_OFFSET
```
private static final int SRC_PROTOCOL_ADDR_OFFSET
```
    See Also:
    
    Constant Field Values
  - SRC_PROTOCOL_ADDR_SIZE
```
private static final int SRC_PROTOCOL_ADDR_SIZE
```
    See Also:
    
    Constant Field Values
  - DST_HARDWARE_ADDR_OFFSET
```
private static final int DST_HARDWARE_ADDR_OFFSET
```
    See Also:
    
    Constant Field Values
  - DST_HARDWARE_ADDR_SIZE
```
private static final int DST_HARDWARE_ADDR_SIZE
```
    See Also:
    
    Constant Field Values
  - DST_PROTOCOL_ADDR_OFFSET
```
private static final int DST_PROTOCOL_ADDR_OFFSET
```
    See Also:
    
    Constant Field Values
  - DST_PROTOCOL_ADDR_SIZE
```
private static final int DST_PROTOCOL_ADDR_SIZE
```
    See Also:
    
    Constant Field Values
  - ARP_HEADER_SIZE
```
private static final int ARP_HEADER_SIZE
```
    See Also:
    
    Constant Field Values
  - hardwareType
```
private final ArpHardwareType hardwareType
```
  - protocolType
```
private final EtherType protocolType
```
  - hardwareAddrLength
```
private final byte hardwareAddrLength
```
  - protocolAddrLength
```
private final byte protocolAddrLength
```
  - operation
```
private final ArpOperation operation
```
  - srcHardwareAddr
```
private final MacAddress srcHardwareAddr
```
  - srcProtocolAddr
```
private final java.net.InetAddress srcProtocolAddr
```
  - dstHardwareAddr
```
private final MacAddress dstHardwareAddr
```
  - dstProtocolAddr
```
private final java.net.InetAddress dstProtocolAddr
```
- Constructor Detail
  - ArpHeader
```
private ArpHeader(byte[] rawData,
                  int offset,
                  int length)
           throws IllegalRawDataException
```
    Throws:
    
    IllegalRawDataException
  - ArpHeader
```
private ArpHeader(ArpPacket.Builder builder)
```
- Method Detail
  - getHardwareType
```
public ArpHardwareType getHardwareType()
```
    Returns:
    
    hardwareType
  - getProtocolType
```
public EtherType getProtocolType()
```
    Returns:
    
    protocolType
  - getHardwareAddrLength
```
public byte getHardwareAddrLength()
```
    Returns:
    
    hardwareAddrLength
  - getHardwareAddrLengthAsInt
```
public int getHardwareAddrLengthAsInt()
```
    Returns:
    
    hardwareAddrLength
  - getProtocolAddrLength
```
public byte getProtocolAddrLength()
```
    Returns:
    
    protocolAddrLength
  - getProtocolAddrLengthAsInt
```
public int getProtocolAddrLengthAsInt()
```
    Returns:
    
    protocolAddrLength
  - getOperation
```
public ArpOperation getOperation()
```
    Returns:
    
    operation
  - getSrcHardwareAddr
```
public MacAddress getSrcHardwareAddr()
```
    Returns:
    
    srcHardwareAddr
  - getSrcProtocolAddr
```
public java.net.InetAddress getSrcProtocolAddr()
```
    Returns:
    
    srcProtocolAddr
  - getDstHardwareAddr
```
public MacAddress getDstHardwareAddr()
```
    Returns:
    
    dstHardwareAddr
  - getDstProtocolAddr
```
public java.net.InetAddress getDstProtocolAddr()
```
    Returns:
    
    dstProtocolAddr
  - getRawFields
```
protected java.util.List<byte[]> getRawFields()
```
    Description copied from class: AbstractPacket.AbstractHeader
    
    Returns a list of byte arrays which represents this header's fields. This method is called by calcLength() and buildRawData().
    
    Specified by:
    
    getRawFields in class AbstractPacket.AbstractHeader
    
    Returns:
    
    a list of byte arrays which represents this header's fields
  - length
```
public int length()
```
    Description copied from class: AbstractPacket.AbstractHeader
    
    Returns the header length in bytes. This method calls calcLength() and caches the return value when it is called for the first time, and then, this method returns the cached value from the second time.
    
    Specified by:
    
    length in interface Packet.Header
    
    Overrides:
    
    length in class AbstractPacket.AbstractHeader
    
    Returns:
    
    the length of the byte stream of the header represented by this object in bytes
  - buildString
```
protected java.lang.String buildString()
```
    Description copied from class: AbstractPacket.AbstractHeader
    
    This method builds the value toString() will return.
    
    Overrides:
    
    buildString in class AbstractPacket.AbstractHeader
    
    Returns:
    
    a string representation of this object
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Description copied from class: AbstractPacket.AbstractHeader
    
    Indicates whether some other object is "equal to" this one using return values of getRawData(). This method should be overridden so that it does more strict comparisons more efficiently.
    
    Overrides:
    
    equals in class AbstractPacket.AbstractHeader
  - calcHashCode
```
protected int calcHashCode()
```
    Description copied from class: AbstractPacket.AbstractHeader
    
    This method builds the value hashCode() will return using the byte array getRawData() returns. This method may be better to be overridden for performance reason.
    
    Overrides:
    
    calcHashCode in class AbstractPacket.AbstractHeader
    
    Returns:
    
    a calculated hash code value for the object

Modifier	Constructor	Description
`private`	`ArpHeader(byte[] rawData, int offset, int length)`
`private`	`ArpHeader(ArpPacket.Builder builder)`

Class ArpPacket.ArpHeader

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.pcap4j.packet.AbstractPacket.AbstractHeader

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

HARDWARE_TYPE_OFFSET

HARDWARE_TYPE_SIZE

PROTOCOL_TYPE_OFFSET

PROTOCOL_TYPE_SIZE

HW_ADDR_LENGTH_OFFSET

HW_ADDR_LENGTH_SIZE

PROTO_ADDR_LENGTH_OFFSET

PROTO_ADDR_LENGTH_SIZE

OPERATION_OFFSET

OPERATION_SIZE

SRC_HARDWARE_ADDR_OFFSET

SRC_HARDWARE_ADDR_SIZE

SRC_PROTOCOL_ADDR_OFFSET

SRC_PROTOCOL_ADDR_SIZE

DST_HARDWARE_ADDR_OFFSET

DST_HARDWARE_ADDR_SIZE

DST_PROTOCOL_ADDR_OFFSET

DST_PROTOCOL_ADDR_SIZE

ARP_HEADER_SIZE

hardwareType

protocolType

hardwareAddrLength

protocolAddrLength

operation

srcHardwareAddr

srcProtocolAddr

dstHardwareAddr

dstProtocolAddr

Constructor Detail

ArpHeader

ArpHeader

Method Detail

getHardwareType

getProtocolType

getHardwareAddrLength

getHardwareAddrLengthAsInt

getProtocolAddrLength

getProtocolAddrLengthAsInt

getOperation

getSrcHardwareAddr

getSrcProtocolAddr

getDstHardwareAddr

getDstProtocolAddr

getRawFields

length

buildString

equals

calcHashCode